1. Introduction
This article is based on a support incident that I worked back on the Platforms day. It was originally published in Portuguese and since it is really interesting I decided to also publish here in my blog. The scenario is the one below:
Figure 1 – Network Topology used in...

Today a friend of mine asked where he can get the slides that once were available at http://www.microsoft.com/brasil/technet/eventos/ciclocontinuado/ciclo-nlb.mspx , the slides are not there anymore, so I decided to share it here: Enjoy it.

Just a quick follow up on the article that I wrote for the ISA Team Blog about ISA stopping answering requests . Last week I was collaborating with Networking Team in another case where ISA was stopping answering because of delays in DNS response. They fixed the DNS issue by changing the registry keys...

I already talked about Network Monitor Wizard (AKA NetWiz ) here some months ago and this is an ongoing project that I have with some friends at Microsoft. Since our original code (written in C#) had some third party components we couldn’t really publish at CodePlex, therefore we completely re-wrote...

The reason why I’m saying “demystifying” is because many people are still having wrong concepts and therefore making wrong assumptions about how networks are configured on ISA Server/TMG. Although this is well documented at TechNet (since it is a core concept), sometimes due the massive amount of information...

Great news folks! Netmon Team just released Netmon 3.3 for public download. This release brings new enhancements from previous version, such as:
· Ability to capture on WWAN and Tunnel interfaces on Win7
· Right-click add to alias.
· Right click go to definition
· Auto-scroll
· API Extension...

Michael Hawker (Network Monitor PM) just release a video about the first Network Monitor Experts Day. Watch it at:
http://channel9.msdn.com/posts/MichaelHawker/Network-Monitor-Experts-Day-Part-1-The-Experts-Story/
Also, talking about Netmon, check it out the news about the new capability that...

1. Introduction
More and more the companies are allowing the employees to access the internal resources remotely. The good thing is that they are also concern about security. For remote access, the VPN still one of the most used solutions for small, medium and large companies. This scenario was...

It was winter 2006 when Roberto Farah and I started to develop this project out of MS work hours called Network Monitor Wizard. I was very excited with the robustness of nmcap but also a little concern about how many parameters we have to manually input. Then I brought this simple idea to him to create...

Last week I said that 3 out of 5 cases where user says it is an ISA issue it ends up not being. Today I worked in another case that goes to that statistic. What makes me sad about this is the mindset that many Windows Admins, Network Administrators and users in general have when deal with an issue where...

1. Understanding the Problem
I already worked in many cases where customer wants to know why ISA is alerting that it might be under attack by logging events such as:
Figure 1 – Number of TCP Connections.
…and also this one:
Figure 2 – Denied Connections per Minute.
...

1. Introduction
One of the main aspects of security is the maintenance and to do that correctly the administrator needs to be able to track changes that are done in the environment. There are a lot of challenges on this area and one of the biggest challenge is to log what needs to be logged without...

1. Another error 64?
After posting one of the reasons why ISA Server 2006 can come up with the generic error 64 in one of my posts , some readers asked me if this is the ultimate reason for this error. The answer is: it is not! Since the error 64 is generic it needs to be carefully interpreted...

1. Introduction
The years working on Platforms and Networking were essential for me to build the foundation prior to migrate to the Security area. Regardless of the technology that I worked, most of the time I was dealing with situations where the customer wants to be secure while allowing access...

My friend Paul Long from Netmon Team recorded a series of videos that will allow you to better understand how Netmon works and how to use it. Check it out here:
UI Overview Part 1
UI Overview Part 2
Capturing with the UI
Capturing with NmCap
...

Although the VPN template screen (see figure below) doesn’t seems to have any news on this area, the new TMG Data Packager introduces new logs that can assist you when troubleshooting VPN site to site issues.
The Oakley log file that TMG Data Packager creates contains the IKEEXT.ETL (IKE...

Introduction
Recently I was engaged on this TechNet Forum thread and I thought that it was an interesting question and concern. Let me explain the scenario on which I was able to repro the behavior on my own lab:
Contoso has a security policy where only users that belong to the Internet Users...

The latest build for Netmon is not available for download. I strongly recommend you to download this new version and test it. There are lots of new features that you will be surprise and glad that they were put in place. Also, check out some of the new features in Netmon Team Blog: http://blogs.technet...